Respiratory mask



FIG. 1 is a front perspective view of a respiratory mask showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view of the respiratory mask where a detachable mask filter is separated from a mask body.

All broken line portions of the figure drawings is included to show portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a respiratory mask, as shown and described. 